Gravely 915036 - ZT1844 Owner's/Operator's Manual

Brand
Gravely
Model
915036 - ZT1844
Category
Lawnmowers
Type
Owner's/Operator's Manual

This manual is also suitable for

Owner/Operator Manual
Models
915034 - ZT1640
915036 - ZT1844
915038 - ZT2048
915040 - ZT2252
ZT
01591500E 4/03
Supersedes 01591500, A-D
Printed in USA
ENGLISH
FRANÇAIS
ESPAÑOL
Transfer
model &
serial number
label from
product reg-
istration here.
Coller l’autocollant du
modèle et du numéro de
série dans cet encadré.
Transferir aquí la etiqueta del
modelo y número de serie
del registro del producto.
GB - 2
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Maintenance Schedule . . . . . . . . . . . . . . . 13
Service and Adjustments . . . . . . . . . . . . . 16
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Troubleshooting. . . . . . . . . . . . . . . . . . . . 24
Service Parts . . . . . . . . . . . . . . . . . . . . . . 25
Accessories . . . . . . . . . . . . . . . . . . . . . . . 25
Specifications . . . . . . . . . . . . . . . . . . . . . 26
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . 27
THE MANUAL
Before operation of unit, carefully and
completely read your manuals. The contents
will provide you with an understanding of
safety instructions and controls during normal
operation and maintenance.
All reference to left, right, front, or rear are
given from operator seated in operation
position and facing the direction of forward
travel.
MODEL AND SERIAL NUMBERS
When ordering replacement parts or making
service inquiries, know the Model and Serial
numbers of your unit and engine.
Numbers are located on the product
registration form in the unit literature package.
They are printed on a serial number label,
located on the frame of your unit.
• Record Unit Model and Serial numbers
here.
• Record Engine Model and Serial numbers
here.
PRODUCT REGISTRATION
The Gravely dealer must register the product
at the time of purchase. Registering the
product will help the company process
warranty claims or contact you with the latest
service information. All claims meeting
requirements during the limited warranty
period will be honored, whether or not the
product registration card is returned. Keep a
proof of purchase if you do not register your
unit.
Customer Note:
If the dealer does not
register your product, please fill out, sign, and
return the product registration card to Gravely.
UNAUTHORIZED REPLACEMENT
PARTS
Use only Gravely replacement parts. The
replacement of any part on this unit with
anything other than a Gravely authorized
replacement part may adversely affect the
performance, durability, and safety of this unit
and may void the warranty. Gravely disclaims
liability for any claims or damages, whether
warranty, property damage, personal injury or
death arising out of the use of unauthorized
replacement parts.
DELIVERY
Customer Note:
If you have purchased this
product without complete assembly and
instruction by your retailer, it is your
responsibility to:
• Read and understand all assembly
instructions in this manual. If you do not
understand or have difficulty following the
instructions, contact your nearest Ariens
Dealer for assistance.
NOTE:
To locate your nearest Gravely Dealer,
call 1-800-472-8359 or go to www.gravely.com
on the internet.
TABLE OF CONTENTS
INTRODUCTION
Figure 1
OE0054
Engine Serial Number Label
Unit Serial Number Label
WARNING:
Improper assembly
or adjustments can cause
serious injury.
© Copyright 2003 Ariens Company
GB - 3
Before attempting to operate your
unit:
1. Make sure all assembly has been
properly completed.
2. Understand all Safety Precautions
provided in the manuals.
3. Review control functions and operation of
the unit. Do not operate the unit unless all
controls function as described in this
manual.
4. Review recommended lubrication,
maintenance and adjustments.
5. Review Limited Warranty Policy.
6. Fill out a product registration card and
return the card to the Ariens Company or
go to www.gravely.com.
DISCLAIMER
Gravely reserves the right to discontinue,
change, and improve its products at any time
without notice or obligation to the purchaser.
The descriptions and specifications contained
in this manual were in effect at printing.
Equipment described within this manual may
be optional. Some illustrations may not be
applicable to your unit.
SAFETY ALERTS
The safety alert symbol is used in decals and
with this manual. Understand the safety
message. It contains important information
about personal safety.
NOTATIONS
NOTE:
General reference information for
proper operation and maintenance practices.
IMPORTANT:
Specific procedures or
information required to prevent damage to unit
or attachment.
SAFETY DECALS AND
LOCATIONS
ALWAYS replace missing or damaged Safety
Decals. Refer to figure 2 for Safety Decal
locations.
1. Caution!
SAFETY
WARNING:
This cutting machine is
capable of amputating hands and feet
and throwing objects. Failure to
observe the safety instructions in the
manuals and on decals could result in
serious injury or death.
Slopes are a major factor related to
loss-of-control and tip-over accidents.
Operation on all slopes requires extra
caution.
Tragic accidents can occur if the
operator is not alert to the presence of
children. Never assume that children
will remain where you last saw them.
Gasoline is extremely flammable and
the vapors are explosive, handle with
care.
Disengage attachment, stop unit and
engine, remove key, engage parking
brake, and allow moving parts to stop
before leaving operator’s position.
Look for these symbols to point
out important safety
precautions. They mean:
• Attention!
• Personal Safety Is
Involved!
• Become Alert!
• Obey The Message!
DANGER:
IMMINENTLY
HAZARDOUS SITUATION! If not
avoided, WILL RESULT in death or
serious injury.
WARNING:
POTENTIALLY
HAZARDOUS SITUATION! If not
avoided, COULD RESULT in death or
serious injury.
CAUTION:
POTENTIALLY
HAZARDOUS SITUATION! If not
avoided, MAY RESULT in minor or
moderate injury. It may also be used
to alert against unsafe practices.
• Maximum Tongue weight: 30 lbs.
• Maximum Trailer weight: 300 lbs.
• Do not use with bagger attached.
• Do not use on steep hills or slopes.
• Do not park on hills when trailer is
attached.
• Do not use with any ground engaging
equipment.
GB - 4
2. Danger!
3. Danger!
4. Warning!
5. Danger! To Avoid Serious Injury or
Death
Avoid injury - Stay clear of
rotating parts.
Figure 2
Always keep feet and hands
away from rotating parts.
Always stand clear of discharge
area. Do not direct discharge
toward other people.
Keep people away from unit
while operating.
OL1816
077541
DANGER/ PELIGRO
07731400D
WARNING/AVERTISSEMENT/ADVERTENCIA
Do not operate mower
unless guards are in
operating position or
bagger is attached.
Ne jamais utiliser
la tondeuse sans
protecteur sur le
canal d'ejection ou
sans le bac monte.
No operar segadora a
menos que las defensas
esten en posicion de
operacion o el
recogedor este fijo.
07742300B
• Risque de blessures - ne pas s’approcher des pièces en
mouvement.
• Evitar lesiones - Mantenerse alejado de las piezas giratorias.
• Avoid injury - Stay clear of rotating parts.
07735200C
DANGER / PELIGRO
OE0050
5
6
3
4
2
1
OL1809
OL1810
OL18111
Shut off engine, remove key,
and read manual before you
adjust or repair unit.
NO STEP! Always keep feet
away from rotating parts.
Always stand clear of discharge
area.
Do not operate mower unless
bagger is attached or guards
are in operating position.
Read the operator’s manual.
Keep children and others away
from unit while operating.
Never direct discharge toward
other people. Thrown objects
can cause injury.
Look down and behind before
and while backing.
Never carry children.
OL1812
OL1813
OL1814
OL1815
OL1801
OL1802
OL1803
OL1804
OL1805
OL1806
GB - 5
6. Hot Surfaces!
SAFETY RULES
If unit is to be used by someone other than
original purchaser; loaned, rented or sold,
ALWAYS provide this manual and any needed
safety training before operation.
Read, understand, and follow all safety
practices in Owner/Operator Manual before
assembling, using or working on this mower.
ALWAYS remove key from ignition and wire
from spark plug before assembly, or working
on this unit.
Inspect unit before each use for: missing or
damaged decals and shields, correctly
operating safety interlock system, and
deterioration of grass catchers. Replace or
repair as needed.
ALWAYS check overhead and side clearances
carefully before operation. ALWAYS be aware
of traffic when crossing or operating along
streets or curbs.
Keep children, people, and pets away. Be alert
and shut off unit if anyone enters work area.
Keep children under watchful care of a
responsible adult.
NEVER allow children to operate or play on or
near unit.
Keep area of operation clear of all toys, and
debris. Thrown objects can cause injury.
Stay alert for hidden hazards, holes, and ruts.
Avoid uneven or rough terrain. DO NOT
operate near drop offs, ditches, or
embankments. Unit can suddenly turn over if a
wheel is over the edge of a cliff or ditch, or if
an edge caves in.
Dust, fog, etc. can reduce vision and cause an
accident. Operate unit only when there is good
visibility and light.
Data indicates that operators, age 60 and
above, are involved in a larger percentage of
riding mower related injuries. These operators
should evaluate their ability to operate the
riding mower safely enough to protect
themselves and others from serious injury.
Only trained adults may operate unit. Training
includes being familiar with controls and actual
operation.
NEVER operate unit after or during the use of
medication, drugs or alcohol.
NEVER allow anyone to operate this unit when
their alertness or coordination is impaired.
Wear adequate safety gear, sturdy shoes, and
protective gloves.
DO NOT wear loose clothing or jewelry and tie
back hair that may get caught in rotating parts.
Protect eyes, face and head from objects that
may be thrown from unit. Wear appropriate
hearing protection. Always wear safety
goggles or safety glasses with side shields
when operating mower.
Avoid sharp edges. Sharp edges can cut.
Moving parts can cut off fingers or a hand.
ALWAYS keep hands and feet away from all
rotating parts during operation. Rotating parts
can cut off body parts.
ALWAYS keep hands away from all pinch
points.
DO NOT touch unit parts which might be hot
from operation. Allow parts to cool before
attempting to maintain, adjust or service.
NEVER place your hands or any part of your
body or clothing inside or near any moving
part while unit is running.
NEVER direct discharge towards persons or
property. Thrown objects may ricochet back
towards operator.ALWAYS stand clear of the
discharge area.
ALWAYS disengage attachment, stop unit and
engine, remove key, engage parking brake,
and allow moving parts to stop before leaving
operator’s position.
Use extreme caution on gravel surfaces.
Disengage PTO when attachment is not in use
and when crossing gravel surfaces.
DO NOT operate unit if safety interlock system
is damaged or disabled. Check safety interlock
before each use.
Go up and down slopes, not
across.
• If machine stops going uphill, stop
blade and back down slowly.
• Avoid sudden turns.
• Keep safety devices (guards, shields,
switches, etc.) in place and working.
• Check interlock system per manual
before use.
• Understand location and function of all
controls.
• Never allow operation by untrained
persons.
• Disengage PTO, stop unit and engine,
set parking brake and remove key
before making any inspections, repairs,
etc.
DO NOT touch parts which are
hot from operation. ALWAYS
allow parts to cool.
MAX
10
OL1807
OL1801
GB - 6
ALWAYS remove key to prevent unauthorized
use.
DO NOT operate at too fast a rate. Slow down
before turning.
Stop engine before removing grass catcher or
unclogging chute.
DO NOT mow on wet grass. Reduced traction
could cause sliding.
DO NOT try to stabilize the machine by putting
your foot on the ground.
Know the weight of loads. Limit loads to those
you can safely control and the unit can safely
handle.
ALWAYS keep protective structures, guards
and panels in good repair, in place and
securely fastened.
Do not operate without either entire grass
catcher or the discharge guard in place.
DO NOT operate in reverse unless absolutely
necessary. ALWAYS look down and behind
before and while backing; especially for
children.
Follow the manufacturer’s recommendations
for wheel weights or counterweights to
improve stability when using attachments.
NEVER carry passengers–especially
children–even with blades off.
Use extra care when approaching blind
corners or objects that may obscure vision of
hidden obstacles and children.
If you cannot back up a slope or you feel
uneasy on it, do not mow it.
Mow up and down slopes, not across them.
Use slow speed on any slope. Tires may lose
traction on slopes even though the brakes are
functioning properly.
Keep all movements on the slope
slow
and
gradual.
DO NOT make sudden changes in
speed or direction.
Use extra care while operating machines with
grass catcher or other attachments. They can
affect stability of the machine.
Avoid starting, stopping, or turning on a slope.
If tires lose traction, disengage the blades and
proceed slowly
straight
down the slope.
DO NOT operate on slopes over 10˚.
DO NOT park on slopes unless necessary. If
unit is parked on a slope, ALWAYS chock or
block wheels and set parking brake.
DO NOT disengage or bypass transmission
and coast downhill.
Tow only with a machine that has a hitch
designed for towing. Do not attach towed
equipment except at the hitch point.
Follow the manufacturer’s recommendations
for weight limits for towed equipment and
towing on slopes.
NEVER allow children or others in or on towed
equipment.
On slopes, the weight of the towed equipment
may cause loss of traction and loss of control.
Travel slowly and allow extra distance to stop.
ALWAYS shut off engine, remove key, and
close fuel shut-off valve or drain fuel when
transporting unit on a truck or trailer.
Use extra care when loading or unloading unit
onto trailer or truck.
Secure unit chassis to transport vehicle.
NEVER secure from rods or linkages that
could be damaged.
DO NOT transport machine while engine is
running.
Keep unit free of grass clippings, leaves, and
other debris. Clean up oil or fuel spills.
This product is equipped with an internal
combustion type engine. DO NOT use unit on
or near any unimproved, forest-covered or
brush covered land unless exhaust system is
equipped with a spark arrester meeting
applicable local, state or federal laws. A spark
arrester, if it is used, must be maintained in
effective working order by operator.
Fuel is highly flammable and its vapors are
explosive. Handle with care. Use an approved
fuel container.
NO smoking, NO sparks, NO flames. ALWAYS
allow engine to cool before servicing.
NEVER fill fuel tank when engine is running or
hot from operation.
NEVER fill or drain fuel tank indoors.
NEVER overfill fuel tank.
Replace fuel cap securely and clean up spilled
fuel.
NEVER fill containers inside a vehicle or on a
truck or trailer bed with a plastic liner. Always
place containers on the ground away from
your vehicle before filling.
When practical, remove gas-powered
equipment from the truck or trailer and refuel it
on the ground. If this is not possible, then
refuel such equipment on a trailer with a
portable container, rather than from a gasoline
dispenser nozzle.
Keep the nozzle in contact with the rim of the
fuel tank or container opening at all times until
fueling is complete. Do not use a nozzle lock-
open device.
If fuel is spilled on clothing, change clothing
immediately.
Avoid Electric Shock. Objects contacting both
battery terminals at the same time may result
in injury and unit damage. DO NOT reverse
battery connections.
Explosive Gases from battery can cause
death or serious injury. Poisonous battery fluid
contains sulfuric acid and its contact with skin,
eyes or clothing can cause severe chemical
burns.
NO flames, NO sparks, NO smoking near
battery.
ALWAYS wear safety glasses and protective
gear near battery.
GB - 7
DO NOT TIP battery beyond a 45˚ angle in any
direction.
ALWAYS keep batteries out of reach of
children.
Battery posts, terminals and related
accessories contain lead and lead
compounds, chemicals known to the State of
California to cause cancer and reproductive
harm. Wash hands after handling.
Reverse connections may result in sparks
which can cause serious injury. Always
connect positive (+) lead of charger to positive
(+) terminal, and negative (-) lead to negative
(-) terminal.
ALWAYS disconnect negative (-) cable FIRST
and positive (+) cable SECOND. ALWAYS
connect positive (+) cable FIRST, and negative
(-) cable SECOND.
A frozen battery can explode and result in
death or serious injury. DO NOT charge or
jump start a battery containing frozen fluid.
Thaw the battery before putting on a charger
or jump starting.
ALWAYS keep protective structures, guards,
and panels in good repair, in place and
securely fastened. NEVER modify or remove
safety devices.
DO NOT change engine governor settings or
over-speed engine.
Fumes from engine exhaust can cause injury
or death. DO NOT run engine in an enclosed
area. Always provide good ventilation.
ALWAYS maintain unit in safe operating
condition. Damaged or worn out muffler can
cause fire or explosion.
Stop and inspect equipment if you strike an
object or if there is an unusual vibration.
Repair, if necessary, before restarting. Never
make adjustments or repairs with the engine
running.
Mower blades are sharp and can cut you.
Wrap the blade(s) or wear gloves, and use
extra caution when servicing them. NEVER
weld or straighten mower blades.
Rotation of one blade may cause rotation of
the other blades.
Check brake operation frequently. Adjust and
service as required.
Keep all hardware properly tightened.
Stored energy in springs can cause injury.
Maintain or replace safety and instruction
labels, as necessary.
Never store the machine or fuel container
inside a building where there is an open flame,
such as a water heater.
Shut off fuel and allow engine to cool
completely before storing in closed area or
covering unit.
For extended storage, clean unit thoroughly.
See Engine Manual for proper storage.
Use only attachments or accessories
designed for your unit.
Check attachment components frequently. If
worn or damaged, replace with manufacturer’s
recommended parts.
GB - 8
TOOLS REQUIRED
• Adjustable wrench
• Petroleum jelly or dielectric grease.
UNPACK UNIT
Remove unit and all other components from
the shipping container. Engage transmission
bypass lever (see
Moving The Unit Manually
on page 12). Push unit from container onto a
level surface. Disengage transmission bypass
lever.
FIRST TIME USE
1. Connect battery. See
Battery Removal
and Installation
on page 19 and perform
steps 2 and 3 in the installation section.
2. Place unit in operating position (figure 3):
a.Tip seat (item 2) back.
b.Secure seat (item 2) to unit with
clamping knob or nut (item 1) (located
in literature pack).
c.Install steering levers (item 3) on the
inside of the handlebar brackets with
mounting hardware (item 4).
d.Adjust steering levers (see
Steering
Lever Adjustments
on page 21).
3. Check oil (see
Check Engine Oil
in
Maintenance Schedule
on page 13).
4. Check tire pressure (see
Specifications
on page 26).
5. Fill fuel tanks (see
Filling The Fuel Tanks
on page 11).
6. Adjust seat (see
Seat Adjustment
on
page 13).
7. Adjust mower lift pedal (see
Mower Lift
Pedal Adjustment
on page 11).
8. Check safety interlock system (see
Safety
Interlock System
on page 9).
9. Check function of all controls (see
Operation
on page 9).
10. Check level and pitch of mower deck (see
Level and Adjust Pitch of Mower Deck
on
page 17).
ASSEMBLY
WARNING:
AVOID INJURY. Read
and understand the entire
Safety
section before proceeding.
1. Clamping Knob
or Nut
2. Seat
3. Steering Lever
4. Mounting
Hardware
Figure 3
OE1010
Shipping
Position
Operating
Position
2
2
4
3
1
GB - 9
CONTROLS AND FEATURES
(FIGURE 4)
Safety Interlock System
Perform the following tests to ensure the
safety interlock system is working properly. If
the unit does not perform as stated contact
your Gravely dealer for repairs.
Ignition Switch (Item 1)
Operated by a removable
key:
1. Stop
2. Headlight (915036, 038,
040)
3. Run
4. Start
Throttle Lever (Item 3) (915034, 036)
Move throttle lever to
CHOKE to start a cold
engine.
Move throttle lever to
FAST position to increase
engine speed.
Move throttle lever to
SLOW position to
decrease engine speed.
OPERATION
WARNING:
AVOID INJURY. Read
and understand the entire
Safety
section before proceeding.
1. Ignition Switch
2. PTO Switch
3. Throttle Lever
4. Choke Control
(915038, 040)
5. Seat
6. Steering Lever
7. Parking Brake
8. Fuel Tank
9. Axle Lock
10. Mower Lift Pedal
11. Mower Deck
12. Discharge Chute
13. Fuel Shut-Off
Valve
Figure 4
WARNING:
Safety interlock failure
and improper operation of unit can
result in death or serious injury. Check
system before each use to make sure
it is functioning properly.
OE0042
5
2
1
3
6
10
1112
8
7
4
9
13
Test Steering
Lever
PTO Parking
Brake
Engine
1 Neutral
Lockout
Position
Off Engaged Starts
2 Forward Off Engaged Doesn’t
Start
3 Neutral
Lockout
Position
On Engaged Doesn’t
Start
4 Out of
Neutral
Lockout
Position
Off Disengaged Doesn’t
Start
5*+ Reverse Off Disengaged Shuts
Off
6*+ Neutral
Lockout
Position
On Engaged Shuts
Off
7*+ Out of
Neutral
Lockout
Position
Off Disengaged Shuts
Off
* Test with engine running.
+ Operator lifts off seat.
1
2
3
4
OA0004
CHOKE
FAST
SLOW
OE0002
GB - 10
Throttle Lever (Item 3) (915038, 040)
Move throttle lever to
FAST position to increase
engine speed.
Move throttle lever to
SLOW position to
decrease engine speed.
Choke Control (Item 4) (915038, 040)
To start a cold engine, pull
choke control out to engage
choke. Push choke control in
to disengage choke.
Parking Brake (Item 7)
Pull lever up
to engage
parking brake
and push
lever down to
disengage
parking brake.
PTO Switch (Item 2)
Engages and
disengages the
attachment. Pull switch
to engage; push switch
to disengage.
Steering Levers (Item 6)
A. Reverse: Pull both steering levers
backward.
B. Forward: Push both steering levers
forward.
C. To Turn Left: Pull the left steering lever
back or push the right steering lever
forward or a combination of both.
D. To Turn Right: Pull the right steering
lever back or push the left steering
lever forward or a combination of both.
Neutral Lockout Position (figure 5):
• The steering levers must be in the Neutral
Lockout Position to start the engine.
• The parking brake must be disengaged
prior to moving the steering levers from
the Neutral Lockout Position.
Mower Lift Pedal (Item 10)
Raises and lowers mower deck.
A. Travel Position (figure 6)
Press mower lift pedal (item 2) all the way
forward. Install adjustment pin (item 1)
into the seventh (# 7) adjustment hole
(item 4).
B. Cutting Position (figure 6)
FAST
SLOW
OE0043
OE0058
OE0049
Engaged
Disengaged
OE005
0E0030
A
B
C
D
077348A
Figure 5
1. Adjustment Pin
2. Mower Lift Pedal
3. Mounting
Hardware
4. Adjustment Hole
Figure 6
OE0056
Steering Levers in the Neutral
Lockout Position
OE0055
1
2
3
4
765 4 3 2 1
05304900
OE0090
GB - 11
NOTE:
The adjustment pin (item 1) is
used to set the height of the mower
deck. See
Specifications
on page 26 for
height adjustment dimensions.
a.Press mower lift pedal (item 2) all the
way forward.
b.Install adjustment pin (item 1) in the
desired adjustment hole (item 4).
c.Slowly release mower lift pedal
(item 2) until contact with adjustment
pin (item 1) is made.
Mower Lift Pedal Adjustment
NOTE:
Position mower lift pedal further
forward or backward for increased leverage in
lifting the mower deck (figure 6).
NOTE:
Adjusting the seat further forward will
also help to increase the leverage in lifting the
mower deck (see
Seat Adjustment
on
page 13).
Remove mounting hardware (item 3) and
place mower lift pedal (item 2) in the desired
position.
Axle Locks (Item 9)
NOTE:
The unit comes shipped with the front
axle (item 1) in the lockout position (item 3)
(figure 7).
If a pivoting front axle is needed:
a.Remove axle lock hardware (item 4)
from lockout position (item 3).
b.Install axle lock hardware (item 4) in
pivoting position (item 2).
Fuel Shut-Off Valve (Item 13)
Use this valve to control
fuel flow from left (1) or
right (2) fuel tank.
Open the valve to operate
the engine. Turn the valve
to "Off" (3) when storing or
transporting the unit.
FILLING THE FUEL TANKS
1. Clean fuel caps and surrounding area to
prevent dust, dirt, and debris from
entering fuel tanks.
2. Remove fuel caps.
IMPORTANT:
See Engine Manual for correct
type and grade of fuel.
3. Fill fuel tanks to 1/2 in. (1.3 cm) below
bottom of filler neck. See
Specifications
on page 26 for capacity of fuel tanks.
4. Replace fuel caps.
STOPPING IN AN EMERGENCY
Bring steering levers back to neutral.
STARTING AND SHUTTING OFF
ENGINE
Starting the Engine
NOTE:
The PTO must be disengaged and the
steering levers in the Neutral Lockout Position
(see
Steering Levers
on page 10) prior to
starting the engine.
1. Set Throttle Lever to CHOKE (915034,
036) or engage Choke Control (915038,
040) for a cold engine. Set Throttle Lever
at 1/3 throttle for a warm engine.
IMPORTANT:
DO NOT operate starter for
more than 15 seconds per minute as damage
can occur.
2. Turn ignition key to START position and
release once the engine has started.
3. After engine starts, set throttle lever to
FAST position. Disengage choke control
(915038, 040).
IMPORTANT:
Let the engine warm up several
seconds to several minutes depending on
outside temperature.
Stopping the Engine
1. Stop unit.
2. Disengage PTO.
3. Set throttle lever to SLOW.
4. Turn ignition switch to OFF position and
remove key.
5. Set parking brake.
1. Front Axle
2. Pivoting Position
3. Lockout Position
4. Axle Lock
Hardware
Figure 7
OE0065
4
3
2
1
RIGHT
TANK
LEFT
TANK
OFF
OF1881
1
2
3
GB - 12
OPERATING MOWER
1. Start engine.
2. Set throttle lever to FAST.
3. Engage PTO to start mower blades.
NOTE:
The parking brake must be disengaged
prior to moving the steering levers from the
Neutral Lockout Position.
4. Release parking brake.
5. Use steering levers to move the unit.
6. Disengage PTO to stop mower blades.
TRANSPORTING UNIT
ALWAYS shut off engine, remove key, and
close fuel shut-off valve or drain fuel when
transporting unit on a truck or trailer. Tie unit
down securely. Do not tie down by linkages,
guards, cables or other parts that may be
damaged.
MOVING THE UNIT MANUALLY
Disengage transmission bypass
levers to drive unit and engage
transmission bypass levers to
push unit manually (figure 8).
WARNING:
DO NOT disengage or
bypass transmission and coast
downhill.
OE0044
Transmission Bypass
Lever Disengaged
Figure 8
Transmission Bypass
Lever Engaged
Muffler Guard Shown
Removed For Clarity
05305200
GB - 13
TIPPING THE SEAT FORWARD
Remove clamping knob or nut and tip seat
forward to access the battery and engine. Tip
seat back and secure to unit with clamping
knob or nut (figure 9).
SEAT ADJUSTMENT
Model 915034
Loosen mounting hardware and slide seat
forward or backward to desired position, then
tighten mounting hardware (figure 11).
Models 915036, 038, 040
Push adjustment lever to the left and slide seat
forward or backward to desired position, then
release adjustment lever.
IMPORTANT:
Proper maintenance can
prolong the life of unit. The following chart
shows the recommended service schedule.
Refer to the maintenance instructions in the
Engine Manual for additional information.
NOTE:
To access the cooling system, fuel
filter, oil drain petcock, and oil fill/dipstick the
seat must be tipped forward (see
Tipping The
Seat Forward
on page 13).
NOTE:
To access the air filter on models
915038, 040, open the hood (see Opening
and Closing the Hood on page 16).
OE0115
Figure 9
Clamping
Knob or
Nut
Seat
Tipped
Forward
Figure 10
OE0032
Seat
Mounting Hardware
OE0031
Figure 11
SeatAdjustment Lever
MAINTENANCE SCHEDULE
WARNING: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
GB - 14
NOTE: Use figure 12 to locate items called out
in the maintenance schedule.
Figure 12
OE0020
7
6
1
5
3
2
4
1. Cooling
System
2. Air Filter
(precleaner
& cartridge)
3. Fuel Filter
4. Oil Filter
5. Spark Plug
6. Oil Drain
Petcock
7. Oil
Fill/Dipstick
Interval Task Action
Each Use
Check Safety
Interlock System
WARNING: Safety interlock system failure and
improper operation of unit can result in death or
serious injury. Test this system each time the unit is
operated. If this system does not function as
described, do not operate until repairs are made
(see Safety Interlock System on page 9).
Check Parking Brake Engage parking brake and engage transmission bypass lever
(see Moving The Unit Manually on page 12). Push unit. If unit
rolls, contact your Gravely Dealer.
Clean Unit Clean engine, battery, seat, mower deck, etc. of all dirt and
debris. Do not use solvents, hard cleaners, or abrasives.
NOTE: Protect painted surfaces with automotive type wax.
Check Tires See Specifications on page 26 for correct tire pressure.
Check Mower Blades Check for worn or damaged mower blades (see Sharpening
Mower Blade on page 18).
Check Engine Oil Use oil fill/dipstick (item 7) to check engine oil level. Add engine
oil if needed, refer to Engine Manual for detailed instructions.
GB - 15
25 Hours
or Every
Season
Check Battery Keep battery and battery terminals clean (see Cleaning Battery
and Battery Cables on page 20).
Lubricate Unit Apply grease to the two
front wheel zerks.
Clean Air Filter
Precleaner
1
Clean air filter precleaner (item 2). Refer to Engine Manual for
detailed instructions.
50 Hours
or Every
Season
Change Engine Oil
2
Drain engine oil by opening oil drain petcock (item 6). Refer to
Engine Manual for detailed instructions.
Check Fasteners Check mower blade mounting hardware and all other fasteners.
Replace fasteners that are missing or damaged. Tighten all nuts
and bolts to the correct torque value.
Inspect Muffler and
Spark Arrestor
Replace muffler and (if equipped) spark arrestor if corroded.
Contact your Gravely Dealer.
100 Hours
or Every
Season
Clean Air Filter
Cartridge
1
Clean air filter cartridge (item 2). Refer to Engine Manual for
detailed instructions.
Change Oil Filter Clean oil filter (item 4). Refer to Engine Manual for detailed
instructions.
Replace Spark Plug
(915034, 036)
Replace spark plug (item 5). Refer to Engine Manual for
detailed instructions.
Replace Fuel Filter
(915034, 036)
Replace fuel filter (item 3). Refer to Engine Manual for detailed
instructions.
Clean Cooling
System
1
Clean cooling system (item 1). Refer to Engine Manual for
detailed instructions.
Check All Belts Replace worn or deteriorated belts.
• Check hydrostatic belt (see Hydrostatic Belt Replacement
on page 22).
• Check PTO belt (see PTO Belt Replacement on page 21).
Check Mower Blade
Stopping Time
See Test Mower Blade Stopping Time on page 22.
Yearly
Clean/Replace Spark
Plugs (915038, 040)
Clean/replace spark plugs (item 5). Refer to Engine Manual for
detailed instructions.
Clean/Replace Fuel
Filter (915038, 040)
Clean/replace fuel filter (item 3). Refer to Engine Manual for
detailed instructions.
1
Service more often when operating under heavy loads, high temperatures, or dusty conditions.
Replace air filter precleaner and cartridge if very dirty.
2
Change after first 5 to 8 hours of use. Change every 25 hours when operating under heavy loads or
in high temperatures.
Interval Task Action
Zerk
GB - 16
OPENING AND CLOSING THE
HOOD
Unhook the two rubber latches to tip hood
back. Close hood and secure with latches
(figure 13).
REMOVE MOWER DECK
Remove (Figure 14)
1. Remove PTO belt (item 3) from electric
clutch (see PTO Belt Replacement on
page 21).
NOTE: Perform step 2 and 3 for the right and
left side of unit.
2. Remove guide arm (item 4) from front
mount bracket (item 6).
3. Remove rear lift link (item 8), rear
trunnion (item 9), front lift link (item 5),
and front trunnion (item 7) from mower
deck (item 1) and mower lift (item 2).
4. Slide mower deck (item 1) out from under
unit.
Install (Figure 14)
1. Slide mower deck (item 1) under unit.
NOTE: Perform step 2 and 3 for the right and
left side of unit.
2. Install rear lift link (item 8), rear trunnion
(item 9), front lift link (item 5), and front
trunnion (item 7) on mower deck (item 1)
and mower lift (item 2).
3. Install guide arm (item 4) on front mount
bracket (item 6).
4. Install PTO belt (item 3) (see PTO Belt
Replacement on page 21).
SERVICE AND ADJUSTMENTS
WARNING: AVOID INJURY. Read
and understand the entire Safety
section before proceeding.
Figure 13
OE1000
Rubber Latch
Hood Tipped
Open
OE0045
8
Figure 14
541
2
2
79
1. Mower Deck
2. Mower Lift
3. PTO Belt
4. Guide Arm
5. Front Lift Link
6. Front Mount
Bracket
7. Front Trunnion
8. Rear Lift Link
9. Rear Trunnion
3
6
GB - 17
LEVEL AND ADJUST PITCH OF
MOWER DECK
Adjust on a level surface, with the tires inflated
to the correct air pressure (see Specifications
on page 26).
Level Mower Deck
1. Install adjustment pin (item 1) in the
fourth adjustment hole (item 3)
(figure 15).
2. Rotate the right and left mower blades
(item 2) until the ends of both mower
blades are facing rearward (figure 16).
NOTE: The rear blade cutting height (item 6)
should be 2-7/8 to 3 in. (7.3 to 7.6 cm) from
rear edge of mower blades to the ground on
both blades (figure 16).
IMPORTANT: The distance from rear edge of
mower blades to the ground MUST NOT
exceed 3 in. (7.6 cm) (figure 16).
3. Measure from rear edge of mower blades
to the ground (figure 16).
4. Perform steps 5 through 7 if the
measurement is too high or too low on
either side of mower deck.
5. Remove rear lift link (item 8) and rear
trunnion (item 9) from mower deck
(item 1) and mower lift (item 2)
(figure 14).
• TO RAISE the mower deck, turn rear
trunnion (item 9) clockwise several
turns.
• TO LOWER the mower deck, turn rear
trunnion (item 9) counterclockwise
several turns.
6. Install rear trunnion (item 9) and rear lift
link (item 8) on mower deck (item 1) and
mower lift (item 2) (figure 14).
7. Check that the mower deck is level:
a.Rotate right and left mower blades to
face side-to-side.
b.Measure outer edge of mower blades
to ground. Measurement must be
within 1/4 inch (6.35 mm).
• If mower deck is not level, repeat steps 5
and 6.
• If mower deck is level, record the
distance from rear edge of mower
blades to the ground and then adjust
pitch of mower deck.
Adjust Pitch of Mower Deck
IMPORTANT: The mower blade end used to
level the mower deck must be used to adjust
the pitch of the mower deck.
1. Rotate the right and left mower blades
180 degrees until the end of the mower
blade that was used to level the mower
deck is facing forward (figure 16).
NOTE: The front blade cutting height (item 4)
should be 1/16 - 1/4 in. (1.59 - 6.35 mm) lower
than the rear blade cutting height (item 6)
(figure 16).
2. Measure from front edge of right and left
mower blades to the ground.
3. Subtract front blade cutting height
(item 4) measurement from rear blade
cutting height (item 6) measurement
(figure 16).
4. Perform steps 5 through 7 if the front
blade cutting height (item 4) is too high or
too low on either side on either side of
mower deck.
5. Remove front lift link (item 5) and front
trunnion (item 7) from mower deck
(item 1) and mower lift (item 2)
(figure 14).
• TO RAISE the mower deck, turn front
trunnion (item 7) clockwise several
turns.
• TO LOWER the mower deck, turn front
trunnion (item 7) counterclockwise
several turns.
1
1. Adjustment Pin
2. Mower Lift
Pedal
3. Fourth
Adjustment
Hole
2
3
Figure 15
OE0060
Figure 16
OE0010
Mower Deck Shown
From The Side
1. Mower Deck
2. Mower Blade
3. Front of Mower
Deck
4. Front Blade
Cutting Height
5. Ground
6. Rear Blade
Cutting Height
1
5
2
4
6
3
GB - 18
6. Install front trunnion (item 7) and front lift
link (item 5) on mower deck (item 1) and
mower lift (item 2) (figure 14).
7. Check mower deck pitch.
• If mower deck pitch is not correct, repeat
steps 2 through 6.
• If mower deck pitch is correct, the
adjustment is complete.
MOWER BLADE REPLACEMENT
Remove (Figure 17)
1. Block mower blades (item 4) to prevent
rotation.
2. Remove mounting hardware and mower
blades (item 4) from mower deck.
Install (Figure 17)
1. Install mower blades (item 4) on mower
deck with mounting hardware.
2. Torque 5/8” hex bolt (item 3) to 80 to
120 lbf-ft (108 to 163 N•m).
SHARPENING MOWER BLADE
1. Remove mower blade from unit (see
Mower Blade Replacement on page 18).
Gravely recommends having mower blades
sharpened by a professional. Contact your
Gravely dealer.
Discard mower blade if (figure 18):
• more than 1/2 in. (1.27 cm) of metal is
removed.
• the air lift erosion area (item 1) is eroded.
• the mower blade is bent or broken.
Do not change angle of cutting edge (item 2)
or round the corner at the end of mower blade.
2. Sharpen mower blade by removing an
equal amount of material from each end
of mower blade.
3. Check mower blade balance by sliding
mower blade on an unthreaded bolt. If
blade is balanced, it should remain in a
horizontal position. If either end of mower
blade moves downward, sharpen the
heavy end until mower blade is balanced
(figure 19).
4. Install mower blade on unit (see Mower
Blade Replacement on page 18).
CAUTION: Mower blades are sharp
and can cut you. Wrap the blades or
wear gloves, and use extra caution
when servicing them.
CAUTION: DO NOT sharpen mower
blade while on unit. An unbalanced
mower blade will cause excessive
vibration and eventual damage to unit.
Check mower blade balance prior to
reinstalling mower blades.
NEVER weld or straighten mower
blades.
1
2
1. Flat Washer
2. Bevel Washer
3. 5/8” Hex Bolt
4. Mower Blade
34
Figure 17
OE0039
1. Air Lift Erosion
Area
2. Cutting Edge
Figure 18
OE0052
2
1
DO NOT Sharpen to this Pattern
Sharpen to this Pattern
DISCARD if
more than
1/2 in.
(1.27 cm)
GB - 19
ANTISCALP ROLLER
ADJUSTMENT
NOTE: The antiscalp rollers are intended to
prevent lawn scalping, not to control cutting
height (figure 20). All antiscalp rollers should
be set at the same height.
There are two positions:
• Position 1: Use to disable antiscalp
feature.
• Position 2: Use for all cutting positions.
In the lowest cutting position the antiscalp
rollers will touch the ground.
SERVICING THE BATTERY
NOTE: Unit comes equipped with a
maintenance-free battery that requires no
regular maintenance except cleaning the
terminals.
Battery Removal and Installation
Remove (Figure 21)
1. Remove clamping knob or nut (item 1)
and tip seat (item 2) forward.
2. Disconnect negative (–) cable (item 7)
first, then positive (+) cable (item 3).
Figure 19
OA0013
Bolt
Mower
Blade
WARNING: Battery posts, terminals
and related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive harm.
Wash hands after handling.
Figure 20
OE0038
Antiscalp
Roller
Position 2
Position 1
Position 2
Position 1
Antiscalp
Roller
GB - 20
3. Remove battery hold-down bracket and
battery from unit.
Install (Figure 21)
1. Install battery on the unit with battery
hold-down bracket.
2. Connect positive (+) cable (item 3) first,
than negative (–) cable (item 7).
3. Apply petroleum jelly or dielectric grease
to battery cable ends and terminals.
4. Tip seat (item 2) back and secure to unit
with clamping knob or nut (item 1).
Cleaning Battery and Battery Cables
(Figure 21)
1. Disconnect negative (–) cable (item 7)
first, then positive (+) cable (item 3).
2. Clean battery cable ends, negative (–)
terminal (item 6), and positive (+) terminal
(item 4) with a wire brush and rinse with a
weak baking soda solution.
3. Connect positive (+) cable (item 3) first,
than negative (–) cable (item 7).
4. Apply petroleum jelly or dielectric grease
to battery cable ends and terminals.
Charging the Battery
(Figure 21)
Follow First Aid directions for contact with
battery fluid.
• External Contact: Flush with water.
• Eyes: Flush with water for at least 15
minutes and get medical attention
immediately!
• Internal Contact: Drink large quantities of
water. Follow with Milk of Magnesia,
beaten egg or vegetable oil. Get medical
attention immediately!
• In case of internal contact, DO NOT
induce vomiting!
IMPORTANT: DO NOT fast charge. Charging
at a higher rate will damage or destroy battery.
IMPORTANT: ALWAYS follow information
provided on battery and battery charger.
Contact battery and battery charger
manufacturers’ for detailed instructions.
1. Remove battery (item 5) from unit (see
Battery Removal and Installation on
page 19).
2. Place battery in a well-ventilated area.
3. Connect positive (+) lead of charger to
positive (+) terminal (item 4), and
negative (–) lead of charger to
negative (–) terminal (item 6).
4. Charge battery according to battery
charger and battery manufacturers’
instructions.
5. Install battery on unit (see Battery
Removal and Installation on page 19).
Jump Starting the Battery
(Figure 21)
IMPORTANT: The unit used for jump starting
should have a 12 volt battery with at least 500
cold cranking amperes, and a negatively
grounded system.
IMPORTANT: Ensure battery is not frozen. If
the battery is frozen, remove battery from unit
and allow it to thaw before charging.
1. Connect the positive (+) jumper cable to
the positive (+) terminal (item 4) of the
discharged battery.
OE0120
5
4
6
7
3
2
1. Clamping Knob
or Nut
2. Seat
3. Positive (+)
cable
4. Positive (+)
Terminal
5. Battery
6. Negative (–)
Terminal
7. Negative (–)
Cable
Figure 21
1
WARNING: FROZEN BATTERIES
CAN EXPLODE and result in death or
serious injury. DO NOT charge a
frozen battery. Let the battery thaw
before charging.
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Gravely 915036 - ZT1844 Owner's/Operator's Manual

Brand
Gravely
Model
915036 - ZT1844
Category
Lawnmowers
Type
Owner's/Operator's Manual
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